[go: up one dir, main page]

EP1581896B1 - Procédé de production de pièces prothétiques dentaires ou de restaurations dentaires au moyen de représentations dentaires électroniques - Google Patents

Procédé de production de pièces prothétiques dentaires ou de restaurations dentaires au moyen de représentations dentaires électroniques Download PDF

Info

Publication number
EP1581896B1
EP1581896B1 EP03785641.6A EP03785641A EP1581896B1 EP 1581896 B1 EP1581896 B1 EP 1581896B1 EP 03785641 A EP03785641 A EP 03785641A EP 1581896 B1 EP1581896 B1 EP 1581896B1
Authority
EP
European Patent Office
Prior art keywords
tooth
correspondence
defective
data set
points
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03785641.6A
Other languages
German (de)
English (en)
Other versions
EP1581896A2 (fr
Inventor
Albert Mehl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sirona Dental Systems GmbH
Original Assignee
Sirona Dental Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sirona Dental Systems GmbH filed Critical Sirona Dental Systems GmbH
Priority to DK16152909.4T priority Critical patent/DK3091454T3/da
Priority to EP16152909.4A priority patent/EP3091454B1/fr
Publication of EP1581896A2 publication Critical patent/EP1581896A2/fr
Application granted granted Critical
Publication of EP1581896B1 publication Critical patent/EP1581896B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/004—Means or methods for taking digitized impressions
    • A61C9/0046—Data acquisition means or methods
    • A61C9/0053—Optical means or methods, e.g. scanning the teeth by a laser or light beam
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00—Pattern recognition
    • G06F18/20—Analysing
    • G06F18/28—Determining representative reference patterns, e.g. by averaging or distorting; Generating dictionaries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/35—Nc in input of data, input till input file format
    • G05B2219/35152—Part coding, description from 3-D cad database
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45167—Dentist, dental manufacture
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45172—Prosthesis
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/40—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture

Definitions

  • the invention relates to a method for producing a general three-dimensional electronic image of a tooth and its use for the production of dental models, dental prostheses or dental restorations of teeth requiring repair or defect situations.
  • tooth defects there are various options for the treatment of tooth defects.
  • One possibility is the direct application of filling material in the mouth, i.
  • the dentist removes the decay and fills the hole in the same session with a filling material.
  • This procedure is chosen especially for smaller defects.
  • For larger defects one resorts more to materials such as metal or ceramics, etc., which can not be made directly in the mouth.
  • the occlusal design in the mouth is more problematic and difficult to perform for larger defects. Therefore, an impression is taken at the dentist after preparation of the tooth. This impression is placed in a dental laboratory and a plaster model is created.
  • the corresponding tooth restoration or tooth replacement part can then be made. This can e.g.
  • a second possibility consists in a further three-dimensional optical measurement either of the existing occlusal surface before the tooth is ground, or a chewing surface individually modeled with wax or plastic (eg Mattiola, A., Mörmann, WH and Lutz, F .: "Computer-Assisted Occlusion of Cerec 2 Inlays and Overlays". Switzerland Monatsschr Zahnmed 105: 1283-1290 (1995 ) Mehl, A., Gloger, W., Hickel, R .: Generation of CAD data records for inlays and crowns with functional occlusal surfaces. Dtsch Zahnärztl Z 52, 520-524 (1997 )).
  • the preparation and the occlusal surface measurement can be positioned to each other and the complete restoration can be supplemented.
  • a wax-up must be created manually, so that the advantage of automation by the CAD / CAM system is no longer given.
  • the initial occlusal surface will not be usable due to existing carious defects or inadequate restorations, so that this possibility is limited only for a small limited indication range.
  • An additional option will be in WO 0239056 presented.
  • a patient archiving system such as smart card for the patient, described, which includes the tooth data are stored. These tooth data can then be re-used at a later time when supplies are made to the patient and used to reconstruct the defect.
  • the generic tooth forms used in this method are not tooth shapes derived from a database by calculation or algorithm and thus not generic tooth models described in the sense of the present invention, but standardized plaster models that are only scanned three-dimensionally and this data set for reconstruction is used.
  • the disadvantage here too is that the standardization is not based on a general design principle and the design is based only on the manual dexterity and the experience of individual experts with corresponding restriction of the naturally occurring variety of forms.
  • Tooth models are used as prosthetic teeth, as stand-alone models, as components of exercise, training and visual models or for presentation in electronic media or print media. Delimitation is the term of the generic tooth model or generic tooth model data set, as it will be explained below.
  • the invention provides a method for producing an electronic data set of a generic tooth model that can be used for the production of a tooth replacement part, a dental restoration or a tooth model, as specified in claim 1. This can be used to make tooth models, dental prostheses or dental restorations.
  • a use of the method for producing an electronic data set of the generic tooth model is specified in claim 4.
  • a use of a numerically controlled machine for the production of dental models, dental prostheses or dental restorations, in that the machine is controlled accordingly with a data set obtained according to the invention, is specified in claim 14. Further developments of the method according to the invention are specified in the dependent claims.
  • a device for visualizing, adapting and adjusting a generic dental model data record is specified in claims 15 and 16.
  • a data set of a generic tooth model obtained in accordance with the invention is particularly suitable as a starting point for the production of a dental prosthesis, a dental restoration or a dental model, because the generic dental model data set, in contrast to a conventional electronic dental model is not based on more or less nature-conforming ideas of the author of the electronic tooth model, but is determined by real teeth.
  • the natural tooth shape expressed in the generic tooth model is the rash and not a human notion originated tooth model.
  • the generic tooth model obtained according to the invention can be used as the starting point and this data set adapted to existing remaining tooth surface parts of the tooth to be repaired or Restgebisssituation to each tooth to be repaired by modified by interactive intervention or by software controlled automatic this record is to make the said adaptation to the tooth surface remnants of the tooth to be repaired or surrounding the tooth to be repaired Restgebisssituation.
  • the method according to claim 1 provides that, based on a correspondence analysis, a principal axis analysis and a linear combination are performed as described in these claims, from which a generic tooth model data set is prepared.
  • a generic tooth model data set is prepared.
  • the adaptation of the generic tooth model data record to the part of the tooth requiring repair can be done in an interactive manner or also fully automatically by means of software control and processing.
  • the method of claim 1 is concerned with the provision of a generic dental model dataset of a particular type of tooth (e.g., OK-6, or even large, medium and small OK-6, etc.). These surfaces already allow a sufficient tooth-like reconstruction for many situations. Furthermore, the generic tooth model data set that any change made to that surface under certain criteria (see below) will most likely yield a natural occlusal surface and that all possible variants of variation will describe the entirety of almost all naturally occurring tooth morphologies , The number of adaptation variables is low and the reconstruction of tooth surfaces can be automated.
  • a generic dental model dataset of a particular type of tooth e.g., OK-6, or even large, medium and small OK-6, etc.
  • this generic dental model data set is carried out over the largest possible number of records of the same tooth type.
  • the electronic data sets can be measured both two- and three-dimensional. Two-dimensional measurement is possible, for example, with metric photography, three-dimensional, for example, with white-light fringe projection, etc. Stereophotogrammetric methods would also be conceivable. For the reconstruction of teeth requiring repair and defect situations, however, at least three-dimensionally measured data sets are required.
  • the type of tooth may be, for example, molars, premolars, canines and anteriors.
  • the tooth type can also be the upper jaw (OK) -6er, lower jaw (UK) -4er, OK-1er etc.
  • tooth type it is also possible to distinguish between age and abrasion, gender, ethnicity, size of teeth, morphological features etc, eg groups OK-7s at the age of 50-60 years, OC-6s with and without tuberculum Carabelli , UK 3s in female individuals, subdivision into large, medium, small 6s, etc. represent an example of a tooth type.
  • adjacent teeth can be combined into a (combined) tooth type to integrate or analyze relationships of adjacent teeth.
  • the selection of the tooth surface for the tooth in need of repair or for the defect situation could take place.
  • tooth type thus includes one depending on Task very variable grouping possibility, which is to be considered in the claims in their generality.
  • the respective data sets must be referenced to one another in a first step (brought into the same coordinate system and aligned approximately uniformly) and correspondences between the surface points of the one data set with the other data sets.
  • These correspondences are e.g. between prominent points and surface structures.
  • This assignment can be done manually, can be done by searching and assignment of certain characteristic feature structures (hump form, fissure course, sidebar, etc.).
  • a process is preferable here that automatically finds these correspondence points and / or structures, since there is still no proven metrically detectable fact which is really the salient points or structures or properties of a particular tooth type.
  • there is no reference in the entire dental literature to an approximate mathematical description of tooth surfaces that would be in any way suitable for the CAD / CAM process.
  • the following procedure has proved to be feasible: First, the data sets of the measured tooth surfaces of a specific tooth type are brought into the same coordinate system in order to obtain the best possible starting point for the automatic correspondence point determination. This can be done with matching routines by minimizing the distance error function, whereby rotation and translation parameters are determined. After the coordinate transformation, the correspondence analysis takes place. From image processing modified optical flow algorithms can be applied successfully. Furthermore, by means of elastic registration or matching of specific features (fissures, cusp tips, bumps, marginal ridges) between the individual tooth surfaces, correspondences can be formed and imaging rules can be found. At the end you get the assignment of many points by correspondences between all data sets.
  • the displacement field be pictorially behaving like an elastic membrane: between the distinct correspondences, this membrane is almost non-displaceable while being displaced therebetween, i. in areas with unclear or weak correspondences, can relax almost freely. This can be calculated, for example, by minimizing an energy function consisting of a coupling of many springs between the individual surface points (approximation of the continuous elastic membrane).
  • ⁇ m ⁇ ⁇ 2 z 2 x y + ⁇ ⁇ ⁇ z x y 2
  • ⁇ defines the weighting of the gradient field in relation to the height image
  • the next step is to represent the reference tooth as a vector in a 3n-dimensional space (where n is the number of selected points on the tooth surface; ideally, one would use an equidistant grid that can give a typical number of points go from 10000-200000):
  • D ⁇ R x 1 . y 1 . z R x 1 y 1 . x 2 . y 2 . z R x 2 y 2 . 7-8 . x n . y n . z R x n y n
  • the same vector coordinates, ie indices, also represent respective corresponding points between all teeth.
  • this average data set is used as the average tooth of a specific tooth group (tooth type).
  • the first 7 major components accounted for approximately 70% of the total variance of 170 teeth.
  • any linear combination according to (equation 1) or (equation 2) will again describe a tooth.
  • a tooth data set generally generated by a linear combination of major axes and possibly addition of average tooth is referred to in this specification as a generic tooth model data set or as a generic tooth model with respect to the tooth type under consideration. Synonymous with this and in the abstract sense, the generic tooth model data set or the generic tooth model with respect to the considered tooth type is also understood in this patent specification as a combination of Data sets of the selected main axes and possibly the average tooth.
  • this combination can be physically imagined either as individual records linked by verkriüp colpfungen or references, or by merging into a large record. If a representation of this generic tooth model or generic tooth model data set is desired, only the special linear factors must be multiplied by the main axes and possibly the average tooth added.
  • the generic tooth model or the generic tooth model data record (hereinafter also abbreviated to "generic tooth”) thus represents a kind of mathematical description of the entire tooth space of the corresponding tooth type.
  • the reconstruction process for the tooth or defect situation requiring repair can be carried out by means of the generic tooth model and can also be largely automated.
  • Reconstruction means the complete or at least partial restoration of the missing outer shell of the tooth in need of repair or the defect situation.
  • the tooth in need of repair may be inlay, onlay, overlay, partial crown, crown, bridge preparations, etc.
  • the defect situation involves the filling of areas with missing teeth, for example bridge links, implant abutments or parts of partial dentures or teeth Full dentures.
  • the term residual situation in this specification is the measured information (in particular data records) of prepared tooth or teeth (tooth or teeth in need of repair) or defect situations and the additional optional inclusion of measured information of the residual tooth substance, the opposing jaw, the functional and the static / occlusal bite registration, the neighboring tooth / teeth and / or the gum portion or the ridge.
  • the opposing jaw only the inclusion of one or more opposing teeth, ie the tooth or teeth facing the tooth requiring repair or the defect situation, is generally sufficient.
  • the term Jacobstatt is synonymous with the technical term antagonist. In this patent, however, parts of the opposing jaw or the entire opposing jaw are also subsumed under the term opposing tooth.
  • ancillary conditions may be incorporated into this process, such as limiting the size of the parameters so that the result is not far out of tooth space, or the condition that the counter purchase area or functional registrate may not be penetrated at the points of contact. over touched. Also, quality parameters such as minimum layer thicknesses for a material or load-optimized surface design can be taken into account.
  • the properties of the generic tooth surface provide the best possible starting conditions for the reconstruction of tooth surfaces.
  • the task is to determine the parameters (linear factors) ⁇ i such that the resulting linear combination (ie new occlusal surface) adapts as well as possible to the existing situation. This is done, for example, by minimizing an error function.
  • the determined optimal generic tooth surface will fit very well into the given residual situation.
  • the residual situation is the measured information (in particular data records) of prepared tooth including residual tooth substance, opposing jaw, functional and static bite registration, neighboring teeth and / or also the course of the gum and the alveolar ridge.
  • Even smaller differences will result, such as e.g. small steps or gaps in the transition to the residual tooth substance, too high points that penetrate the bite registration or the neighboring tooth, missing contact points, etc.
  • missing surface areas such as approximal surfaces, oral and vestibular surfaces may have to be added.
  • Claim 5 includes the entire manufacturing process from surveying to production. Implementation variants listed above can be used analogously here. From the description and the drawings, a person skilled in the art can derive further variants, which are not listed individually here, so that these too can be regarded as being fully included in the patent specification.
  • Claim 6 relates to a method for producing a three-dimensional electronic data set of dental prostheses or dental restorations, wherein after the assignment of correspondence points and / or structures of the tooth to be repaired and / or the defect situation to the generic tooth model data set, the linear factors for the used part of the main axes are optimized in that the new linear combination optimally adapts or coincides with the correspondences.
  • Claim 7 relates to a method in which the linear factors are determined by minimizing the distances between the correspondence points.
  • Claim 8 relates to a method in which the linear factors are determined so that the probability of the determined linear combination is as high as possible.
  • Claim 9 relates to a method in which the optimization takes into account the importance of certain correspondence points and / or correspondence structures in the form of weighting factors.
  • Claim 10 refers explicitly to the consideration of functional and / or static or occlusal bite registries.
  • a major advantage of the total occlusal adaptation by means of mathematical or electronic procedure is that the entire production chain of opposing jaw impression, production of a plaster model of this jaw, Einartikulation of the opposing jaw and Assignment to the sawed or preparation model, until the determination and adjustment of the temporomandibular joint parameters etc. no longer has to perform.
  • the alternative here is the direct impression of the opposing jaw situation by means of bite registration in the mouth.
  • the static bite registration sometimes referred to as occlusal bite registration, is obtained by placing impression material in the desired location by biting the patient and gritting the teeth until the material sets.
  • Information about the jaw movements is obtained by the patient additionally performing as many different jaw movements as possible before setting the introduced impression material. This then results in the functional bite registration, sometimes referred to as FGP (function generated path).
  • FGP function generated path
  • this information can be included in the optimization or minimization methods in the form of boundary conditions. For example, this condition could be: contact points are points of contact (interpolation of the point with a second derivative equal to 0) with the bite registration, while the remaining areas of the reconstructed surface must not be touched.
  • the measured information of the adjacent teeth are additionally included for the Approximal voméquis (eg position of the proximal contact, expansion, etc.) and for the selection of correspondence points or structures (eg margins, shapes of occlusal surface, etc.).
  • Approximal perennialrises e.g position of the proximal contact, expansion, etc.
  • correspondence points or structures e.g margins, shapes of occlusal surface, etc.
  • individual points (eg contact points) or the shape and structures of the opposing tooth can be utilized for the correspondence formation and thus the selection of the best fitting tooth surface for the reconstruction of the tooth or defect situation requiring repair can be carried out.
  • the information of the corresponding symmetrically opposite tooth could be used, since it is often assumed that these tooth shapes are only mirror images, but otherwise very similar.
  • this claim includes the possibility of the relationships between adjacent teeth of the same patient found from the main axis analysis or correspondence analysis (eg in the production of the generic tooth model of adjacent teeth) from the information of the neighboring tooth / teeth on the to close the outer shell or at least parts of this outer shell.
  • One possibility is to optimize the parameters of the combined generic tooth model data set when adapting to the neighboring tooth / neighboring teeth, at the same time correspondingly changing the tooth surface to be reconstructed.
  • the same method is also applicable to the opposing tooth or the symmetrically opposite tooth.
  • the information of neighboring teeth / neighboring teeth, of opposing teeth and / or of the symmetrically opposite tooth / teeth can also consist of two-dimensionally measured data sets.
  • the or a particular concept favors, or before each new supply the desired contact points marked on the generic tooth, the corresponding correspondence points on the bite registration and / or the residual tooth substance or the neighboring tooth .
  • a functionally designed natural occlusal surface is obtained.
  • This procedure is only possible with generic teeth, since in the case of tooth libraries the best tooth can only be selected if the corresponding reference points of all teeth have to be redetermined when changing the contact / function situation, and a complex task is required for a large number of teeth.
  • deformation of only one model tooth which is not generated on the basis of a generic tooth and the principal component analysis has not been performed, there is no guarantee that the result will yield a harmonic, tooth-like result.
  • the occlusal surface belongs to the former
  • the vestibular, proximal and oral surfaces of the teeth belong to the former.
  • the specification of only a few design points is sufficient ( Fig. 8 and 16 ).
  • One way of implementing this is to compute Bezier, Nurbs, or B-spline surfaces that consistently and smoothly connect to the appropriate parts of the preparation margin and the border of the inserted library dataset, using the construction points (such as approximal contact, bulge of the vestibular surface). or oral surface).
  • each dental data record is assigned, either by referencing or by appropriate naming, a data set that contains the type and characteristics to be considered for the selection.
  • the library is said to consist of tooth surfaces derived from natural caries-free and intact teeth.
  • Tooth Library contains the totality of all possible natural and artificial tooth forms. It makes sense to divide the tooth library into groups with different tooth types. For example, this type of tooth grouping may include molars, premolars, canines, and anterior teeth. As a tooth type but also the OK-6, UK-4, OK-1er etc. are available. It is also possible to distinguish between age and abrasion, gender, ethnicity, size of teeth, morphological features etc, eg groups OK-7s at the age of 50-60 years, OC-6s with and without tuberculum Carabelli UK 3 in females represent an example of a type of tooth. The term tooth type thus includes a very variable grouping option depending on the task.
  • the factor age or abrasion wherein tooth library surfaces of a specific tooth type are to be present at all age or abrasion levels, can be taken into account and the determined combinations of linear factors and main components which describe this factor can be used optimally adjust the abrasion for the respective residual situation.
  • the distance threshold can also be varied or adaptively adjusted.
  • the distance threshold can also be varied or adaptively adjusted.
  • points in the cavity or on the ground areas of the tooth surface are not taken into account or are negligible due to the small number. This makes the automatic completion of the preparation line possible.
  • the search is made for areas where a transition from smaller distance values (areas where residual tooth substance is still present, in which the reconstructed occlusal surface usually has small deviations) to areas with larger distances (areas where the Tooth ground or tooth substance was removed) occurs. In these transitional areas must also be the preparation margin or at least parts of it ( Fig. 13 ).
  • This procedure can be improved if you look in these areas for the points of the strongest curvature on the surface of the record of the tooth in need of repair and connects these points strongest curvature in these areas to a line (eg Fig. 14 and 15 ).
  • a fully automatic process can be envisaged, from reconstruction to preparation margin determination.
  • this can also be used as support and proposal submission for further interactive reworking by the user.
  • the entry of the preparation margin is possible interactively.
  • points are clicked on the surface of the electronic image of the tooth in need of repair at certain intervals. This clicking can be done with various control and control elements, such as computer mouse, keyboard, joystick or 3D mouse. Between these selected points, a connecting line is interpolated in space. In order to get points from the measured tooth surface, the connecting line is projected onto the surface ( Fig. 14 ). It is crucial that the direction of projection can be chosen differently for certain section areas or for each section. This can be achieved eg by pre-programmed values or by interactive adjustment of the view of the tooth data set ( Fig. 14 ). This can be done, for example, by performing the projection of the line in the same direction in the view for marking or clicking on the respective point.
  • the connecting lines in addition to straight lines can also be spline or parabolic segments. Even after projection onto the surface, spline segments or the like can even smooth out the possibly jagged or noisy curves.
  • a particularly useful alternative is to search for points with the greatest curvature in the vicinity or even between the clicked points. Because of the procedure for preparing and grinding a tooth for restoration with a dental restoration, these are the locations where the preparation margin should be located. By connecting the points with the largest curvatures, ie a line of the largest curvatures, you get a very good proposal for the course of the preparation margin ( Fig. 15 ).
  • any defects found in the dataset of the dental restoration or dental prostheses can be found and closed. Such defects may arise, for example, in that the reconstructed occlusal surface or the reconstructed dataset does not cover the entire polished portion or the adaptation in the region of the preparation margin does not take place without errors and therefore the dataset protrudes in this region or has defects ( Fig. 6 . 8th . 15 ).
  • the preparation line By automatic comparison of the preparation line with the boundary curve of the reconstructed data set, it can be decided by distance checking which regions of the lines or curves are too far apart and therefore necessitate a filling or supplementation ( Fig. 15 ).
  • the relevant sections of the boundary curve must still be assigned automatically to the corresponding sections of the preparation boundary.
  • Fig. 1 Shows a three-dimensionally measured tooth requiring repair as a height dataset.
  • Fig. 2 shows a bite registration referenced to a tooth in need of repair.
  • This bite registration contains information about the antagonist. It may be either a static bite registration and / or a functional bite registration and / or the opposing teeth row. The important thing is that this information be referenced in the same coordinate system as the tooth.
  • Figure 3 shows the same situation as in Fig. 2 , but with adjacent teeth (top) and additional bite registration (bottom). The entire arrangement represents the residual situation.
  • the adjacent teeth provide, for example, the information for the mesial-distal extent of the reconstructed outer shell. Moreover, based on the shape of the
  • Neighbor teeth are made a selection for the tooth surface (outer shell), which are eligible for reconstruction in the appropriate situation.
  • Fig. 4 By marking points on the residual tooth surface and / or contact points on the bite registration (counter tooth row) and / or the proximal contact of the adjacent tooth, the tooth surfaces can be optimally adapted either by the library or by the generic tooth with major components by minimizing a corresponding error function. Instead of the dot marks one can also select larger areas, such as residual tooth substance and / or contact surfaces, by means of which the tooth surfaces are adapted by matching or optical flow. It is also possible to determine the locations of possible contact points automatically by comparing the functional bite registration and the static (occlusal) bite registration.
  • Fig. 5 shows a chewing surface selected from the library and transformed to the position or a generic occlusal surface, adapted to the situation by optimizing the linear factors of the main components. In both cases, one obtains a relatively good result, which still needs to be adapted by deformation to the edges and the Gegenbebergerung.
  • Fig. 8 If there is little or no residual tooth substance (eg crown preparations), the missing outer surfaces are supplemented over the entire circular area. It makes sense to specify some construction points. The supplement will usually be automated. The further requirement is a smooth transition in the peripheral areas.
  • residual tooth substance eg crown preparations
  • Fig. 9 shows an example of a generically generated tooth surface. This is, for example, an average tooth, which was calculated from 200 juvenile unbroken first maxillary molars (OK-6).
  • the generic occlusal surface with the main components can in turn be adapted to the residual situation by using the residual tooth substance ( Fig. 10 ) and / or by selecting certain points on bite registration ( Figure 11 ) and / or adjacent teeth etc.
  • the selection of specific contact and feature points or structures can be made directly before the calculation and construction by means of the generic tooth model data set, since it suffices to mark these points on the generic tooth .
  • every single tooth would have to be provided with the new feature points. This therefore allows a quick change depending on the situation to implement different occlusion and shape concepts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Optics & Photonics (AREA)
  • Automation & Control Theory (AREA)
  • Manufacturing & Machinery (AREA)
  • Human Computer Interaction (AREA)
  • Artificial Intelligence (AREA)
  • General Engineering & Computer Science (AREA)
  • Evolutionary Computation (AREA)
  • Evolutionary Biology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Bioinformatics & Computational Biology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Claims (16)

  1. Procédé de réalisation d'un enregistrement électronique d'un modèle de dent générique utilisable pour la fabrication d'une pièce de prothèse dentaire, d'une restauration dentaire ou d'un modèle de dent, comprenant les étapes de procédé suivantes:
    a) en mesurant un nombre minimum prédéterminé de dents du même type de dent, on génère une pluralité d'enregistrements électroniques de ce type de dent;
    b) une affectation d'au moins un certain nombre de points de correspondance et/ou de structures de correspondance caractéristiques de ce type de dent est effectuée dans les enregistrements électroniques individuels;
    c) une analyse d'axe principal est exécutée pour les points de correspondance et/ou les structures de correspondance affectés des dents mesurées;
    d) une combinaison linéaire composée d'au moins d'une partie des axes principaux résultants est exécutée pour le type de dent en question et mise à disposition sous la forme d'un enregistrement de modèle de dent générique.
  2. Procédé selon la revendication 1, dans lequel l'affectation des points de correspondance et/ou des structures de correspondance est effectuée automatiquement.
  3. Procédé selon l'une quelconque des revendications 1 ou 2, dans lequel pour l'affectation des points de correspondance et/ou des structures de correspondance, on utilise une combinaison pondérée des données électroniques correspondantes, composée au moins de valeurs de hauteur et de pentes et/ou de courbures.
  4. Utilisation d'une représentation électronique d'un modèle de dent générique, obtenue par le procédé selon l'une quelconque des revendications 1 à 3, pour une réalisation de modèles de dent, de restaurations dentaires ou de pièces de prothèse dentaire physiques au moyen d'une machine commandée selon l'enregistrement de modèle de dent générique ou bien par des parties de ces enregistrements.
  5. Procédé de fabrication de pièces de prothèse dentaire ou de restaurations dentaires physiques pour des dents abîmées ou pour des situations d'édentement en utilisant une représentation électronique d'un modèle de dent générique obtenue par le procédé selon l'une quelconque des revendications 1 à 4, comprenant les étapes suivantes:
    a) un mesurage en trois dimensions d'une préparation de la dent abîmée ou d'une situation d'édentement est effectué et un enregistrement électronique représentant la préparation ou la situation d'édentement est généré;
    b) parmi les informations électroniques de la préparation mesurée ou de la situation d'édentement mesurée, on sélectionne des points de correspondance et/ou des structures de correspondance caractéristiques du type de dent de la dent abîmée ou du type de dent adapté à la situation d'édentement;
    c) les points de correspondance et/ou les structures de correspondance dans l'enregistrement électronique de la préparation ou de la situation d'édentement mesurée sont affectés à des points de correspondance et/ou des structures de correspondance adéquats dans l'enregistrement du modèle de dent générique;
    d) les points de correspondance et/ou les structures de correspondance affectés les uns aux autres sont dans la mesure du possible approximés par un procédé d'optimisation;
    e) l'enregistrement déterminé par l'optimisation est utilisé comme base d'une reconstruction de la partie manquante de la dent abîmée ou pour combler la situation d'édentement;
    f) une pièce de prothèse dentaire physique ou une restauration dentaire physique pour la dent abîmée ou pour la situation d'édentement est fabriquée au moyen d'une machine commandée par l'enregistrement obtenu à l'étape e).
  6. Procédé selon la revendication 5 pour réaliser un enregistrement électronique tridimensionnel de pièces de prothèse dentaire ou de restaurations dentaires, dans lequel, une fois l'affectation de points et/ou de structures de correspondance de la dent abîmée et/ou de la situation d'édentement à l'enregistrement de modèle de dent générique effectuée, les facteurs linéaires pour la partie utilisée des axes principaux sont optimisés de telle sorte que la nouvelle combinaison linéaire adapte ou fait coïncider les correspondances aussi bien que possible.
  7. Procédé selon la revendication 6, dans lequel les facteurs linéaires sont déterminés en minimisant les distances entre les points de correspondance.
  8. Procédé selon la revendication 6 ou 7, dans lequel les facteurs linéaires sont déterminés de telle sorte que la probabilité de la combinaison linéaire déterminée est aussi élevée que possible.
  9. Procédé selon l'une quelconque des revendications 5 à 8, dans lequel l'optimisation tient compte de la pondération de certains points de correspondance et/ou structures de correspondance sous la forme de facteurs de pondération.
  10. Procédé selon l'une quelconque des revendications 5 à 9, dans lequel des enregistrements électroniques d'un enregistrement d'occlusion fonctionnel et/ou d'un enregistrement d'occlusion statique sont pris en compte.
  11. Procédé selon la revendication 10, dans lequel les informations de l'enregistrement d'occlusion sont incorporées pour former les points de correspondance et/ou les structures de correspondance en vue de la reconstruction de la dent abîmée et/ou de la situation d'édentement.
  12. Procédé selon la revendication 10 ou 11, dans lequel les plages possibles des points de contact avec la ou les dents antagonistes sont déterminées sous la forme de points de correspondance et/ou de structures de correspondance par la sélection des zones à faibles distances entre ces enregistrements d'occlusion en superposant l'enregistrement de l'enregistrement d'occlusion statique/occlusal à l'enregistrement de l'enregistrement d'occlusion fonctionnel.
  13. Procédé selon l'une quelconque des revendications 5 à 12, dans lequel des données électroniques dérivées d'au moins une dent voisine et/ou d'au moins une dent antagoniste et/ou d'au moins une dent symétriquement opposée sont incorporées pour former les points de correspondance et/ou les structures de correspondance en vue de la reconstruction de la dent abîmée et/ou de la situation d'édentement.
  14. Utilisation d'une machine à commande numérique pour fabriquer des modèles de dent, des restaurations dentaires ou des pièces de prothèse dentaire en commandant la machine selon l'enregistrement obtenu par le procédé selon l'une quelconque des revendications 1 à 13.
  15. Dispositif de modification d'un enregistrement de modèle de dent générique obtenu par un procédé selon l'une quelconque des revendications 1 à 3, présentant un dispositif de régulation permettant de modifier les facteurs linéaires au moins d'une partie des principaux composants de l'enregistrement de modèle de dent générique.
  16. Dispositif selon la revendication 15, comprenant un dispositif d'imagerie couplé au dispositif de régulation pour l'imagerie de la dent générique correspondant à l'enregistrement de modèle de dent générique et de l'effet d'une modification des facteurs linéaires effectuée au moyen du dispositif de régulation.
EP03785641.6A 2002-11-11 2003-11-10 Procédé de production de pièces prothétiques dentaires ou de restaurations dentaires au moyen de représentations dentaires électroniques Expired - Lifetime EP1581896B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK16152909.4T DK3091454T3 (da) 2002-11-11 2003-11-10 Fremgangsmåde til fremstilling af tandprotesedele eller tandrestaureringer ved anvendelse af elektroniske tandbilleder
EP16152909.4A EP3091454B1 (fr) 2002-11-11 2003-11-10 Procede de fabrication de protheses dentaires ou de restaurations dentaires a l'aide de representation electronique de la dent

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10252298A DE10252298B3 (de) 2002-11-11 2002-11-11 Verfahren zur Herstellung von Zahnersatzteilen oder Zahnrestaurationen unter Verwendung elektronischer Zahndarstellungen
DE10252298 2002-11-11
PCT/EP2003/012525 WO2004044787A2 (fr) 2002-11-11 2003-11-10 Procede de production de pieces prothetiques dentaires ou de restaurations dentaires au moyen de representations dentaires electroniques

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP16152909.4A Division EP3091454B1 (fr) 2002-11-11 2003-11-10 Procede de fabrication de protheses dentaires ou de restaurations dentaires a l'aide de representation electronique de la dent
EP16152909.4A Division-Into EP3091454B1 (fr) 2002-11-11 2003-11-10 Procede de fabrication de protheses dentaires ou de restaurations dentaires a l'aide de representation electronique de la dent

Publications (2)

Publication Number Publication Date
EP1581896A2 EP1581896A2 (fr) 2005-10-05
EP1581896B1 true EP1581896B1 (fr) 2016-07-13

Family

ID=32308512

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16152909.4A Expired - Lifetime EP3091454B1 (fr) 2002-11-11 2003-11-10 Procede de fabrication de protheses dentaires ou de restaurations dentaires a l'aide de representation electronique de la dent
EP03785641.6A Expired - Lifetime EP1581896B1 (fr) 2002-11-11 2003-11-10 Procédé de production de pièces prothétiques dentaires ou de restaurations dentaires au moyen de représentations dentaires électroniques

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP16152909.4A Expired - Lifetime EP3091454B1 (fr) 2002-11-11 2003-11-10 Procede de fabrication de protheses dentaires ou de restaurations dentaires a l'aide de representation electronique de la dent

Country Status (8)

Country Link
US (2) US8727776B2 (fr)
EP (2) EP3091454B1 (fr)
AU (1) AU2003294708A1 (fr)
CA (2) CA2739586C (fr)
DE (1) DE10252298B3 (fr)
DK (2) DK3091454T3 (fr)
ES (1) ES2593708T3 (fr)
WO (1) WO2004044787A2 (fr)

Families Citing this family (168)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11026768B2 (en) 1998-10-08 2021-06-08 Align Technology, Inc. Dental appliance reinforcement
AU2002218974A1 (en) * 2000-11-08 2002-05-21 Willytec Gmbh (dental) surface mapping and generation
ATE380997T1 (de) 2002-10-18 2007-12-15 Aepsilon Rechteverwaltungs Gmb Vorrichtungen und verfahren zur oberflächenerfassung und zur herstellung von zahnersatzteilen
DE10304757B4 (de) * 2003-02-05 2005-07-21 Heraeus Kulzer Gmbh Vorrichtung und Verfahren zur Herstellung von Zahnersatz
DE10312848A1 (de) * 2003-03-21 2004-10-07 Sirona Dental Systems Gmbh Datenbank, Zahnmodell und Zahnersatzteil, aufgebaut aus digitalisierten Abbildungen realer Zähne
US8460243B2 (en) 2003-06-10 2013-06-11 Abbott Diabetes Care Inc. Glucose measuring module and insulin pump combination
US7722536B2 (en) 2003-07-15 2010-05-25 Abbott Diabetes Care Inc. Glucose measuring device integrated into a holster for a personal area network device
US9492245B2 (en) 2004-02-27 2016-11-15 Align Technology, Inc. Method and system for providing dynamic orthodontic assessment and treatment profiles
WO2005119524A2 (fr) 2004-06-04 2005-12-15 Therasense, Inc. Architecture hote-client de soins pour le diabete et systemes de gestion de donnees
ES2657868T3 (es) * 2004-06-10 2018-03-07 Institut Straumann Ag Procedimiento y dispositivos para la fabricación de una prótesis dental
DE102004038136B4 (de) 2004-07-08 2019-06-13 Sirona Dental Systems Gmbh Verfahren zur Konstruktion der Oberfläche eines aus dreidimensionalen Daten bestehenden Zahnersatzteils
DE102004035970A1 (de) * 2004-07-23 2006-02-16 Sirona Dental Systems Gmbh Verfahren zur Bearbeitung eines digitalisierten Werkstücks, insbesondere von dreidimensionalen Modellen von herzustellenden Zahnersatzteilen und Vorrichtung
US7862336B2 (en) * 2004-11-26 2011-01-04 Cadent Ltd. Method and system for providing feedback data useful in prosthodontic procedures associated with the intra oral cavity
US20060115790A1 (en) * 2004-11-26 2006-06-01 Michael Alon Method and accessory for preparing a dental crown or bridge
US20060183082A1 (en) * 2005-02-17 2006-08-17 D4D Technologies, Lp Method and computer system for creating a dental restoration model
DE102005009873A1 (de) * 2005-03-01 2006-09-07 Sirona Dental Systems Gmbh Verfahren zur Apassung eines als 3D-Datensatz vorliegenden Zahnersatzteils
DE102005011066A1 (de) 2005-03-08 2006-09-14 Sirona Dental Systems Gmbh Verfahren zur Herstellung der Lageübereinstimmung von 3D-Datensätzen in einem dentalen CAD/CAM-System
DE102005035474B4 (de) * 2005-07-28 2019-06-13 Institut Straumann Ag Verfahren zum Herstellen von Zahnersatzteilen, Computer, Computerprogramm und computerlesbares Medium
US7912257B2 (en) 2006-01-20 2011-03-22 3M Innovative Properties Company Real time display of acquired 3D dental data
US7698014B2 (en) 2006-01-20 2010-04-13 3M Innovative Properties Company Local enforcement of accuracy in fabricated models
DE102006021640B3 (de) * 2006-05-08 2007-10-11 Sirona Dental Systems Gmbh Verfahren, Rohling, Rohlingssortiment, Zahndatenbank und Rohlingsdatenbank mit vorgefertigter Teilendfläche zur Herstellung von Zahnersatzteilen
US7844429B2 (en) * 2006-07-19 2010-11-30 Align Technology, Inc. System and method for three-dimensional complete tooth modeling
DE102006061134A1 (de) * 2006-12-22 2008-06-26 Aepsilon Rechteverwaltungs Gmbh Verfahren betreffend den Transport von Zahnersatzteilen
DE102006061143A1 (de) * 2006-12-22 2008-07-24 Aepsilon Rechteverwaltungs Gmbh Verfahren, computerlesbares Medium und Computer betreffend die Herstellung von Zahnersatzteilen
DE102007002178A1 (de) * 2007-01-03 2008-07-10 Aepsilon Rechteverwaltungs Gmbh Verfahren betreffend die Modellierung und Herstellung von einem künstlichen Gebiss
US7916911B2 (en) 2007-02-26 2011-03-29 Align Technology, Inc. System and method for digital tooth imaging
DE102007014985A1 (de) * 2007-03-28 2008-10-02 Aepsilon Rechteverwaltungs Gmbh Verfahren zum Herstellen von Zahnersatzteilen, Verfahren zum Erstellen eines Datensatzes und computerlesbares Medium
US8099268B2 (en) * 2007-05-25 2012-01-17 Align Technology, Inc. Tooth modeling
US8275180B2 (en) * 2007-08-02 2012-09-25 Align Technology, Inc. Mapping abnormal dental references
US7878805B2 (en) 2007-05-25 2011-02-01 Align Technology, Inc. Tabbed dental appliance
US8738394B2 (en) 2007-11-08 2014-05-27 Eric E. Kuo Clinical data file
US8108189B2 (en) * 2008-03-25 2012-01-31 Align Technologies, Inc. Reconstruction of non-visible part of tooth
US8092215B2 (en) 2008-05-23 2012-01-10 Align Technology, Inc. Smile designer
US9492243B2 (en) 2008-05-23 2016-11-15 Align Technology, Inc. Dental implant positioning
US8172569B2 (en) 2008-06-12 2012-05-08 Align Technology, Inc. Dental appliance
US8152518B2 (en) 2008-10-08 2012-04-10 Align Technology, Inc. Dental positioning appliance having metallic portion
US8292617B2 (en) 2009-03-19 2012-10-23 Align Technology, Inc. Dental wire attachment
EP3593755B1 (fr) * 2009-03-20 2021-08-18 3Shape A/S Programme informatique pour la planification, la visualisation et l'optimisation des restaurations dentaires
US8765031B2 (en) 2009-08-13 2014-07-01 Align Technology, Inc. Method of forming a dental appliance
WO2011041531A1 (fr) 2009-09-30 2011-04-07 Abbott Diabetes Care Inc. Interconnexion pour dispositif de surveillance de substance à analyser sur un corps
US8521317B2 (en) 2009-11-24 2013-08-27 Sirona Dental Systems Gmbh Systems, methods, apparatuses, and computer-readable storage media for designing and manufacturing prosthetic dental items
EP2536347B1 (fr) * 2010-02-19 2018-12-05 3Shape A/S Procédé de composition et de conception d'un ensemble de dents
DE102010002484B4 (de) 2010-03-01 2019-10-17 Josef Schweiger Verfahren, Vorrichtung und Computerprogramm zur Erzeugung eines zur Herstellung eines Zahnersatzes geeigneten Zahndatensatzes
US9211166B2 (en) 2010-04-30 2015-12-15 Align Technology, Inc. Individualized orthodontic treatment index
US9241774B2 (en) 2010-04-30 2016-01-26 Align Technology, Inc. Patterned dental positioning appliance
US9179988B2 (en) 2010-05-25 2015-11-10 Biocad Medical, Inc. Dental prosthesis connector design
GB201009999D0 (en) * 2010-06-15 2010-07-21 Materialise Dental Nv Custom healing cap for dental implantology and method for design and manufacturing thereof
US9226806B2 (en) * 2010-09-17 2016-01-05 Biocad Medical, Inc. Occlusion estimation in dental prosthesis design
US8594820B2 (en) * 2010-09-17 2013-11-26 Nobel Biocare Services Ag Prosthesis manipulation in dental prosthesis design
US8712733B2 (en) * 2010-09-17 2014-04-29 Biocad Medical, Inc. Adjusting dental prostheses based on soft tissue
US9155599B2 (en) 2010-11-03 2015-10-13 Global Dental Science Llc Systems and processes for forming anatomical features in dentures
US20150037760A1 (en) 2010-11-03 2015-02-05 Timothy C. Thompson System and Process for Duplication of Dentures
US9213784B2 (en) 2010-11-03 2015-12-15 Global Dental Science Llc System and process for optimization of dentures
US20160008108A1 (en) * 2010-11-03 2016-01-14 Timothy C. Thompson System and Processes for Optimization for Dentures
US8954181B2 (en) 2010-12-07 2015-02-10 Sirona Dental Systems Gmbh Systems, methods, apparatuses, and computer-readable storage media for designing and manufacturing custom dental preparation guides
DE102011008074A1 (de) 2011-01-07 2012-07-12 Martin Tank Verfahren und Zahnrestaurationsermittlungssystem zur Ermittlung von Zahnrestaurationen
DE102011010975A1 (de) 2011-02-10 2012-08-16 Martin Tank Verfahren und Analysesystem zur geometrischen Analyse von Scandaten oraler Strukturen
EP3906870B1 (fr) * 2011-02-18 2023-07-26 3M Innovative Properties Company Méthode implémentée par ordinateur pour la simulation de collision de deux dents virtuelles
US10136845B2 (en) 2011-02-28 2018-11-27 Abbott Diabetes Care Inc. Devices, systems, and methods associated with analyte monitoring devices and devices incorporating the same
US9584771B2 (en) * 2011-04-05 2017-02-28 Andreas Mandelis Systems and methods for thermophotonic dynamic imaging
DE102011080700A1 (de) * 2011-08-09 2013-02-14 Sirona Dental Systems Gmbh Datenbank und Verfahren zur Erzeugung einer virtuellen dentalen Objektdarstellung aus einer Aufnahme
GB201115265D0 (en) 2011-09-05 2011-10-19 Materialise Dental Nv A method and system for 3d root canal treatment planning
US9403238B2 (en) 2011-09-21 2016-08-02 Align Technology, Inc. Laser cutting
US8875398B2 (en) 2012-01-04 2014-11-04 Thomas J. Balshi Dental prosthesis and method of its production utilizing standardized framework keys and matching premanufactured teeth
US9375300B2 (en) 2012-02-02 2016-06-28 Align Technology, Inc. Identifying forces on a tooth
US9364302B2 (en) 2012-02-08 2016-06-14 Global Dental Science Llc Process and systems for molding thermosetting plastics
US9220580B2 (en) 2012-03-01 2015-12-29 Align Technology, Inc. Determining a dental treatment difficulty
DE102012104373B4 (de) 2012-05-21 2019-02-21 Albert Mehl Verfahren zur Bewegungssimulation von Kiefern und Rekonstruktion mit virtuellem funktionellem Bissregistrat
US9414897B2 (en) 2012-05-22 2016-08-16 Align Technology, Inc. Adjustment of tooth position in a virtual dental model
DE102012210758A1 (de) * 2012-06-25 2014-01-02 Sirona Dental Systems Gmbh Verfahren zur Überprüfung von Zahnstellungen
DE102012214470B4 (de) 2012-08-14 2021-12-30 Sirona Dental Systems Gmbh Verfahren zur Registrierung einzelner dreidimensionaler optischer Aufnahmen zu einer Gesamtaufnahme einer Zahnsituation
US10061868B2 (en) * 2012-09-26 2018-08-28 Biomet 3I, Llc Method and system for selecting surface finishes
US20140180643A1 (en) * 2012-12-21 2014-06-26 Andrew Pacinelli Computer implemented method for selecting a dental prosthetic
WO2014130536A1 (fr) 2013-02-19 2014-08-28 Global Dental Science Llc Système amovible et procédé pour dentier et guides chirurgicaux
US9867684B2 (en) 2013-03-14 2018-01-16 Global Dental Sciences LLC System and process for manufacturing of dentures
EP2967813A4 (fr) 2013-03-15 2016-11-09 Conformis Inc Modélisation cinématique et paramétrée pour des implants, outils et procédures chirurgicales adaptés au patient
JP6640088B2 (ja) 2013-08-26 2020-02-05 ジェームズ アール． グライドウェル デンタル セラミックス，インコーポレーテッド コンピュータにより実行される歯科修復物設計
US9055993B2 (en) 2013-08-29 2015-06-16 Global Dental Science Llc Denture reference and registration system
US10251733B2 (en) 2014-03-03 2019-04-09 Global Dental Science Llc System and method for manufacturing layered dentures
US10206764B2 (en) 2014-03-03 2019-02-19 Global Dental Sciences, LLC System and method for manufacturing layered dentures
US11690700B2 (en) * 2014-05-08 2023-07-04 Cagenix, Inc. Dental framework and prosthesis
US10123856B2 (en) * 2014-05-08 2018-11-13 Cagenix, Inc. Dental framework and prosthesis
US11173017B2 (en) * 2014-05-08 2021-11-16 Cagenix, Inc Overdenture and dental implant framework
US10449016B2 (en) 2014-09-19 2019-10-22 Align Technology, Inc. Arch adjustment appliance
US9610141B2 (en) 2014-09-19 2017-04-04 Align Technology, Inc. Arch expanding appliance
WO2016046308A1 (fr) * 2014-09-24 2016-03-31 3Shape A/S Création d'une conception de restauration numérique
US9744001B2 (en) 2014-11-13 2017-08-29 Align Technology, Inc. Dental appliance with cavity for an unerupted or erupting tooth
WO2016101071A1 (fr) * 2014-12-22 2016-06-30 Dental Wings Inc. Pré-formes et leurs procédés d'utilisation dans la fabrication de prothèses dentaires
JP5807131B1 (ja) * 2015-01-22 2015-11-10 株式会社松風 欠損歯牙形態決定方法
US10504386B2 (en) 2015-01-27 2019-12-10 Align Technology, Inc. Training method and system for oral-cavity-imaging-and-modeling equipment
GB2534862A (en) * 2015-01-30 2016-08-10 Denpros Design Company Ltd Method of constructing a generic tooth geometry, generic dental implant, and method of forming a cutting head
US10614174B2 (en) 2015-01-30 2020-04-07 Dentsply Sirona Inc. System and method for adding surface detail to digital crown models created using statistical techniques
US10327867B2 (en) 2015-02-25 2019-06-25 James R. Glidewell Dental Ceramics, Inc. Arch form placement for dental restoration design
US9451873B1 (en) * 2015-03-06 2016-09-27 Align Technology, Inc. Automatic selection and locking of intraoral images
US9877814B2 (en) 2015-05-01 2018-01-30 Sirona Dental Systems Gmbh Methods, apparatuses, computer programs, and systems for creating a custom dental prosthesis using a CAD/CAM system
US11648084B2 (en) 2015-06-11 2023-05-16 Global Dental Science Llc Positioning method and system for implant-supported dentures
US9814549B2 (en) 2015-09-14 2017-11-14 DENTSPLY SIRONA, Inc. Method for creating flexible arch model of teeth for use in restorative dentistry
US11931222B2 (en) 2015-11-12 2024-03-19 Align Technology, Inc. Dental attachment formation structures
US11554000B2 (en) 2015-11-12 2023-01-17 Align Technology, Inc. Dental attachment formation structure
US11103330B2 (en) 2015-12-09 2021-08-31 Align Technology, Inc. Dental attachment placement structure
US11596502B2 (en) 2015-12-09 2023-03-07 Align Technology, Inc. Dental attachment placement structure
AT518148A1 (de) 2016-01-14 2017-07-15 Heinrich Steger Verfahren zum Erstellen eines digitalen Gebissmodells
US11317998B2 (en) 2016-04-11 2022-05-03 3Shape A/S Method for aligning digital representations of a patient's jaws
US11207161B2 (en) 2016-05-30 2021-12-28 3Shape A/S Predicting the development of a dental condition
JP6658308B2 (ja) * 2016-05-30 2020-03-04 富士通株式会社 歯の種類判定プログラム、歯冠位置判定装置及びその方法
EP3988048B1 (fr) 2016-06-17 2024-01-17 Align Technology, Inc. Dispositif de surveillance de performances d'un appareil orthodontique
US10470847B2 (en) 2016-06-17 2019-11-12 Align Technology, Inc. Intraoral appliances with sensing
US11266486B2 (en) 2016-06-20 2022-03-08 Global Dental Science, LLC Positioning handle and occlusal locks for removable prosthesis
AU2017281290B2 (en) 2016-06-21 2022-03-17 Nobel Biocare Services Ag Method for estimating at least one of shape, position and orientation of a dental restoration
RU2610911C1 (ru) * 2016-07-01 2017-02-17 Самвел Владиславович Апресян Система и способ виртуального прототипирования улыбки на базе тактильного компьютерного устройства
EP4252698A3 (fr) 2016-07-27 2023-12-06 Align Technology, Inc. Scanner intra-buccal pouvant établir un diagnostic dentaire
WO2018029434A1 (fr) * 2016-08-09 2018-02-15 Denpros Design Company Limited Procédé de construction d'une forme de dent générique, d'un implant dentaire générique et d'un procédé de formation d'une tête de coupe.
US10483004B2 (en) * 2016-09-29 2019-11-19 Disney Enterprises, Inc. Model-based teeth reconstruction
US10556347B2 (en) * 2016-11-01 2020-02-11 Brachium, Inc. Vision guided robot path programming
EP3534832B1 (fr) 2016-11-04 2023-09-27 Align Technology, Inc. Procédés et appareils de prise d'images dentaires
US11376101B2 (en) 2016-12-02 2022-07-05 Align Technology, Inc. Force control, stop mechanism, regulating structure of removable arch adjustment appliance
WO2018102811A1 (fr) 2016-12-02 2018-06-07 Align Technology, Inc. Procédés et appareils pour personnaliser des dispositifs d'expansion palatine rapides à l'aide de modèles numériques
WO2018102702A1 (fr) 2016-12-02 2018-06-07 Align Technology, Inc. Caractéristiques d'un appareil dentaire permettant l'amélioration de la parole
PL3547952T3 (pl) 2016-12-02 2021-05-31 Align Technology, Inc. Ekspander podniebienny
FR3060170B1 (fr) * 2016-12-14 2019-05-24 Smart Me Up Systeme de reconnaissance d'objets base sur un modele generique 3d adaptatif
US10548700B2 (en) 2016-12-16 2020-02-04 Align Technology, Inc. Dental appliance etch template
US10779718B2 (en) 2017-02-13 2020-09-22 Align Technology, Inc. Cheek retractor and mobile device holder
CN108567501B (zh) * 2017-03-14 2021-04-27 无锡时代天使医疗器械科技有限公司 牙齿邻接面的重建方法
US12090020B2 (en) 2017-03-27 2024-09-17 Align Technology, Inc. Apparatuses and methods assisting in dental therapies
US10613515B2 (en) 2017-03-31 2020-04-07 Align Technology, Inc. Orthodontic appliances including at least partially un-erupted teeth and method of forming them
US10820970B2 (en) 2017-04-07 2020-11-03 3M Innovative Properties Company Method of making a dental restoration
US11045283B2 (en) 2017-06-09 2021-06-29 Align Technology, Inc. Palatal expander with skeletal anchorage devices
EP3638146B1 (fr) 2017-06-16 2024-07-10 Align Technology, Inc. Détection automatique du type de dent et de son état d'éruption
US10639134B2 (en) 2017-06-26 2020-05-05 Align Technology, Inc. Biosensor performance indicator for intraoral appliances
CN107260335B (zh) * 2017-06-26 2019-09-10 达理 一种基于人工智能的牙列畸形自动化分类和设计方法
KR101911693B1 (ko) 2017-07-11 2019-01-04 오스템임플란트 주식회사 치아 변연선 추출 방법, 장치 및 치아 변연선 추출 방법을 수행하는 프로그램이 기록된 기록매체
US10885521B2 (en) 2017-07-17 2021-01-05 Align Technology, Inc. Method and apparatuses for interactive ordering of dental aligners
US11419702B2 (en) 2017-07-21 2022-08-23 Align Technology, Inc. Palatal contour anchorage
WO2019023461A1 (fr) 2017-07-27 2019-01-31 Align Technology, Inc. Teinte, transparence et émaillage dentaire
WO2019023631A1 (fr) 2017-07-27 2019-01-31 Align Technology, Inc. Système et procédés de traitement d'un aligneur orthodontique au moyen d'une tomographie par cohérence optique
US20190046297A1 (en) * 2017-08-11 2019-02-14 Align Technology, Inc. Devices and systems for creation of attachments for use with dental appliances and changeable shaped attachments
WO2019035979A1 (fr) 2017-08-15 2019-02-21 Align Technology, Inc. Évaluation et calcul de couloir buccal
WO2019036677A1 (fr) 2017-08-17 2019-02-21 Align Technology, Inc. Surveillance de conformité d'appareil dentaire
US12171575B2 (en) 2017-10-04 2024-12-24 Align Technology, Inc. Intraoral systems and methods for sampling soft-tissue
US10813720B2 (en) 2017-10-05 2020-10-27 Align Technology, Inc. Interproximal reduction templates
CN114939001B (zh) 2017-10-27 2025-02-18 阿莱恩技术有限公司 替代咬合调整结构
WO2019089773A1 (fr) 2017-10-31 2019-05-09 Align Technology, Inc. Appareil dentaire à chargement occlusif sélectif et intercuspidation contrôlée
WO2019089989A2 (fr) 2017-11-01 2019-05-09 Align Technology, Inc. Planification automatique de traitement
WO2019100022A1 (fr) 2017-11-17 2019-05-23 Align Technology, Inc. Dispositifs de retenue orthodontiques
WO2019108978A1 (fr) 2017-11-30 2019-06-06 Align Technology, Inc. Capteurs pour surveiller des appareils buccaux
US11432908B2 (en) 2017-12-15 2022-09-06 Align Technology, Inc. Closed loop adaptive orthodontic treatment methods and apparatuses
US10980613B2 (en) 2017-12-29 2021-04-20 Align Technology, Inc. Augmented reality enhancements for dental practitioners
US11013581B2 (en) 2018-01-26 2021-05-25 Align Technology, Inc. Diagnostic intraoral methods and apparatuses
US10803675B2 (en) 2018-02-20 2020-10-13 Ivoclar Vivadent Ag Dental model attributes transfer
US11937991B2 (en) 2018-03-27 2024-03-26 Align Technology, Inc. Dental attachment placement structure
KR102736991B1 (ko) 2018-04-11 2024-12-03 얼라인 테크널러지, 인크. 해제 가능한 구개 확장기
CN108670451B (zh) * 2018-05-04 2020-10-13 上海正雅齿科科技股份有限公司 牙齿邻接面修补方法、装置、用户终端及存储介质
CA3099755A1 (fr) * 2018-06-01 2019-12-05 Dentsply Sirona Inc. Procedes de conception numerique de dents artificielles
KR102078547B1 (ko) * 2018-07-26 2020-02-19 오스템임플란트 주식회사 변연선을 제공하는 변연선 자동 설정 방법, 변연선 자동 설정 장치 및 기록매체
CN109191565B (zh) * 2018-08-01 2022-05-17 福建师范大学 一种残缺足骨化石的重建方法
US10315353B1 (en) 2018-11-13 2019-06-11 SmileDirectClub LLC Systems and methods for thermoforming dental aligners
KR102095531B1 (ko) * 2019-01-03 2020-03-31 오스템임플란트 주식회사 자동 변연선 생성 장치 및 그 방법
US11007042B2 (en) 2019-02-06 2021-05-18 Sdc U.S. Smilepay Spv Systems and methods for marking models for dental aligner fabrication
US10482192B1 (en) * 2019-02-12 2019-11-19 SmileDirectClub LLC Systems and methods for selecting and marking a location on a dental aligner
US11321918B2 (en) 2019-02-27 2022-05-03 3Shape A/S Method for manipulating 3D objects by flattened mesh
US10849723B1 (en) 2019-05-07 2020-12-01 Sdc U.S. Smilepay Spv Scanning device
US10687916B1 (en) * 2019-08-15 2020-06-23 SmileDirectClub LLC Systems and methods for intraoral device quality control
RU2725280C1 (ru) * 2019-10-15 2020-06-30 Общество С Ограниченной Ответственностью "Доммар" Приспособления и методы планирования ортодонтического лечения
JP2022554388A (ja) * 2019-11-07 2022-12-28 ジェンセン インダストリーズ インコーポレイテッド 口蓋弓歯科装具の解剖学的位置を決定および確認するためのシステムおよび方法
US11735306B2 (en) 2019-11-25 2023-08-22 Dentsply Sirona Inc. Method, system and computer readable storage media for creating three-dimensional dental restorations from two dimensional sketches
JP6800358B1 (ja) * 2020-02-03 2020-12-16 株式会社松風 歯科補綴装置の設計方法および設計装置
US20220401192A1 (en) * 2021-06-22 2022-12-22 Reset Technology Corporation Systems and methods for providing oral devices using at-home dental impression kits
US20240268938A1 (en) * 2023-02-13 2024-08-15 Exocad Gmbh Closing holes in a three-dimensional digital preparation model

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536654B1 (fr) * 1982-11-30 1987-01-09 Duret Francois Procede de realisation d'une prothese dentaire
US4936862A (en) * 1986-05-30 1990-06-26 Walker Peter S Method of designing and manufacturing a human joint prosthesis
US5217375A (en) * 1989-03-23 1993-06-08 Sandvik Ab Artificial onlay tooth crowns and inlays
US5027281A (en) * 1989-06-09 1991-06-25 Regents Of The University Of Minnesota Method and apparatus for scanning and recording of coordinates describing three dimensional objects of complex and unique geometry
US5257203A (en) * 1989-06-09 1993-10-26 Regents Of The University Of Minnesota Method and apparatus for manipulating computer-based representations of objects of complex and unique geometry
US5533895A (en) * 1990-01-19 1996-07-09 Ormco Corporation Orthodontic appliance and group standardized brackets therefor and methods of making, assembling and using appliance to straighten teeth
US5273429A (en) * 1992-04-03 1993-12-28 Foster-Miller, Inc. Method and apparatus for modeling a dental prosthesis
SE501410C2 (sv) * 1993-07-12 1995-02-06 Nobelpharma Ab Förfarande och anordning i samband med framställning av tand, brygga, etc
SE501411C2 (sv) * 1993-07-12 1995-02-06 Nobelpharma Ab Förfarande och anordning vid tredimensionell kropp användbar i människokroppen
EP0667587A3 (fr) * 1994-02-15 1996-01-31 Motorola Inc Procédé pour la description générique des valeurs indiquées.
DE19642247C1 (de) 1996-10-12 1998-01-15 Sebastian Meller Verfahren zur Herstellung eines Zahnersatzteils
US5879158A (en) * 1997-05-20 1999-03-09 Doyle; Walter A. Orthodontic bracketing system and method therefor
DK0913130T3 (da) * 1997-10-31 2003-06-16 Dcs Forschungs & Entwicklungs Fremgangsmåde og apparat til fremstilling af en tanderstatningsdel
CA2296274A1 (fr) 1998-05-13 1999-11-18 Acuscape International, Inc. Procede pour generer des modeles en 3d a partir d'images medicales
DE19838239A1 (de) * 1998-08-22 2000-03-02 Girrbach Dental Gmbh Preform
DE19923978A1 (de) * 1999-04-12 2000-10-26 Wolfgang Funk Verfahren zur computergestützten patientenspezifischen Darstellung und Planung zahnärztlicher und/oder zahnprothetischer Arbeiten
US7160110B2 (en) * 1999-11-30 2007-01-09 Orametrix, Inc. Three-dimensional occlusal and interproximal contact detection and display using virtual tooth models
US6648640B2 (en) * 1999-11-30 2003-11-18 Ora Metrix, Inc. Interactive orthodontic care system based on intra-oral scanning of teeth
US7027642B2 (en) * 2000-04-28 2006-04-11 Orametrix, Inc. Methods for registration of three-dimensional frames to create three-dimensional virtual models of objects
AU2002218974A1 (en) * 2000-11-08 2002-05-21 Willytec Gmbh (dental) surface mapping and generation
US7065243B2 (en) * 2001-06-28 2006-06-20 Eastman Kodak Company Method and system for creating dental models from imagery
EP1304088A1 (fr) * 2001-10-09 2003-04-23 Mörmann, Werner Procédé et appareil ee fabrication de prothèses dentaires
US7865259B2 (en) * 2007-12-06 2011-01-04 Align Technology, Inc. System and method for improved dental geometry representation

Also Published As

Publication number Publication date
CA2739586A1 (fr) 2004-05-27
DK1581896T3 (en) 2016-10-24
EP1581896A2 (fr) 2005-10-05
US8727776B2 (en) 2014-05-20
EP3091454B1 (fr) 2019-10-02
CA2505892C (fr) 2015-04-07
US20120171642A1 (en) 2012-07-05
US9672444B2 (en) 2017-06-06
WO2004044787A2 (fr) 2004-05-27
ES2593708T3 (es) 2016-12-12
CA2739586C (fr) 2015-06-30
AU2003294708A8 (en) 2004-06-03
DK3091454T3 (da) 2020-01-13
WO2004044787A3 (fr) 2007-11-15
CA2505892A1 (fr) 2004-05-27
US20060063135A1 (en) 2006-03-23
EP3091454A1 (fr) 2016-11-09
AU2003294708A1 (en) 2004-06-03
DE10252298B3 (de) 2004-08-19

Similar Documents

Publication Publication Date Title
EP1581896B1 (fr) Procédé de production de pièces prothétiques dentaires ou de restaurations dentaires au moyen de représentations dentaires électroniques
EP2673747B1 (fr) Procédé et système d'analyse pour l'analyse géométrique de données de balayage de structures orales
EP2661732B1 (fr) Procédé et système d'identification de restaurations dentaires, destinés à identifier des restaurations dentaires
DE112014003898B4 (de) Computerimplementierte Zahnrestaurations-Gestaltung
DE102007033998B4 (de) System und Verfahren zur dreidimensionalen vollständigen Zahnmodellierung
EP1614397B1 (fr) Procédure pour la production de la surface d'une reconstruction dentaire consistante de saisies tridimensionnelles
DE69327661T2 (de) Verfahren und vorrichtung zum herstellen von individuell angepasstenorthodontischen einrichtungen
DE102005033738B4 (de) Verfahren und Vorrichtung zur Herstellung von Zahnersatzteilen
US8457772B2 (en) Method for planning a dental component
EP1795149B1 (fr) Procédé et dispositif destiné à la fabrication de prothèses dentaires
EP3705080B1 (fr) Modélisation informatique d'une prothèse dentaire spécifique au patient
EP3618758B1 (fr) Procédé de réalisation d'un composant dentaire
EP3824844A1 (fr) Procédé de construction d'une restauration
DE19642247C1 (de) Verfahren zur Herstellung eines Zahnersatzteils
JPH0549651A (ja) 歯冠補綴物設計装置
EP3984495A1 (fr) Procédé de conception d'une restauration dentaire
EP2961345B1 (fr) Procédé de traitement virtuel d'un modèle dentaire
Dai et al. Gingival morphology‐controlled design of the complete denture baseplate
DE102023106238B3 (de) Verfahren und System zur Erzeugung eines Modells zur Verwendung in einem virtuellen Extraktionsverfahren für ein Extraktionszielobjekt an einem Patienten, sowie korrespondierendes Computerprogrammprodukt und Speichermedium für selbiges
WO2024165572A1 (fr) Procédé et système d'analyse pour établir un modèle 3d numérique de la dentition d'un patient

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050609

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
PUAK Availability of information related to the publication of the international search report

Free format text: ORIGINAL CODE: 0009015

17Q First examination report despatched

Effective date: 20071105

TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIRONA DENTAL SYSTEMS GMBH

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SIRONA DENTAL SYSTEMS GMBH

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MEHL, ALBERT

INTG Intention to grant announced

Effective date: 20160222

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RBV Designated contracting states (corrected)

Designated state(s): AT CH DE DK ES FR GB IT LI SE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE DK ES FR GB IT LI SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 812822

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160715

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 50315501

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20161020

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2593708

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20161212

REG Reference to a national code

Ref country code: SE

Ref legal event code: RINS

Effective date: 20170203

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 50315501

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20170418

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 50315501

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: G06F0017500000

Ipc: G06F0030000000

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50315501

Country of ref document: DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20220930

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20221010

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20221011

Year of fee payment: 20

Ref country code: IT

Payment date: 20221011

Year of fee payment: 20

Ref country code: ES

Payment date: 20221208

Year of fee payment: 20

Ref country code: DK

Payment date: 20221111

Year of fee payment: 20

Ref country code: DE

Payment date: 20220930

Year of fee payment: 20

Ref country code: AT

Payment date: 20221025

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20221103

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50315501

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Expiry date: 20231110

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20231124

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20231109

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 812822

Country of ref document: AT

Kind code of ref document: T

Effective date: 20231110

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20231109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20231111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20231109

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20231111

P01 Opt-out of the competence of the unified patent court (upc) registered

Free format text: CASE NUMBER: UPC_APP_413155/2023

Effective date: 20230509